High-power direct ethylene glycol fuel cell (DEGFC) based on nanoporous proton-conducting membrane (NP-PCM)

Synthesis and Evaluation of Highly Tolerant Pd Electrocatalysts as Cathodes in Direct Ethylene Glycol Fuel Cells (DEGFC)

“…Furthermore, the complete oxidation of C 2 H 6 O 2 delivers 10 e -, i.e., more than CH 3 OH (6e -) and it has been reported by Peled´s group that the theoretical capacity of EG is higher than that of methanol (4.8 vs. 4 Ah/mL, respectively) [23]. The same group has successfully worked on the development of high power density DEGFCs [25][26][27][28].…”

“…However, the same problem related to poorly tolerant Pt-alone cathode electrocatalysts occurs with DEGFCs, i.e., the detrimental effect of ethylene glycol crossover through the polymer membrane, which is relatively high at commercially available membranes [27]. In recent communications, we have shown that the catalytic activity of Pt-alone electrocatalysts for the ORR is significantly reduced by the presence of EG in acid solutions and the value of E onset is remarkably displaced towards more negative potentials in the presence of relatively low concentrations of the liquid fuel [11,15,29].…”

Performance comparison of low-temperature direct alcohol fuel cells with different anode catalysts

“…Yet, it is still desirable to increase the number of liquid fuels that can be employed in these systems in order to extend the practical application of low-temperature fuel cells and to facilitate their penetration into energy market. Besides methanol, other small organic compounds such as formic acid [7][8][9][10][11], formaldehyde [9,11], ethanol [12], ethylene glycol [12,13], n-propanol [12] and so on have been investigated and demonstrated appropriate for this type fuel cell, because they are reasonably inexpensive, nontoxic and largely available and have suitable electrochemical reactivity at relatively low temperatures. Furthermore, they have comparable energy density and reversible energy efficiency compared to H 2 .…”

Anodic Oxidation of Polyhydric Alcohols on a Pt Electrode in Alkaline Solution

“…These polyhydric alcohols are, therefore, promising candidates as fuels in direct fuel cells for portable devices. Recently, Peled et al reported the direct ethylene glycol fuel cell (DEGFC) employing a proton-exchange membrane which showed several advantages such as low fuel cross-over and high power density, as large as that of DMFCs at a high temperature of 130 C [14].…”